A lifetime enhancing and QoS provisioning routing protocol for wireless sensor networks

A wireless sensor network typically consists of a very large number of small, inexpensive, disposable, robust, and low-power sensor nodes working cooperatively. In this paper, we propose a routing protocol for wireless sensor networks, which focuses on satisfying QoS constraints while maximizing the lifetime of the networks. Our proposed protocol enhances the network lifetime by distributing the traffic flow over multiple paths, while satisfying the different QoS requirements in a dynamic and decentralized manner. Simulation shows that the network lifetime increases without compromising QoS requirements and throughput.